Extended Data Fig. 1: Longer homology arms increase integration with both HMEJ or HR.

Percentage of cells expressing GFP following electroporation with Cas9 mRNA, gRNAs, and HMEJ templates with the indicated homology arm lengths. Statistical analyses were done using Two-way ANOVA (n = 3–6 independent biological donors) (*p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001).